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Title: Expression Data from Normal or ErbB2 Tumor Fibroblasts With or Without Ets2      
dateReleased:
12-01-2013
description:
The mechanisms involved in epithelium-stroma interactions remain poorly understood, despite the importance of the microenvironment during tumorigenesis. Here, we studied the role of Ets2 transcrpiton factor in tumor associated fibroblasts in the MMTV-ErbB2 mammary tumor model. Inactivation of Ets2 specifically in fibroblasts using Fsp-cre significantly reduced tumor growth, in contrast to Ets2 inactivation in epithelium in which no differences in tumor growth were observed. Microarray analysis on isolated fibroblasts demonstrated the important role of Ets2 in remodeling of the extracellular matrix and angiogenesis in these cells. Tumors lacking Ets2 in fibroblats had diminished blood vessels. Our tumor specific gene signature was also represented in the stroma of human breast cancer patients. Collectively, our results suggest Ets2 uniquely contributes to angiogenesis from fribroblasts in the tumor microenvironment. Primary mammary fibroblasts were isolated from mice with no oncogene with or without Ets2 and with the ErbB2 oncogene with or without Ets2, RNA was extracted and samples were submitted for Affymetrix gene expression arrays
privacy:
not applicable
aggregation:
instance of dataset
ID:
E-GEOD-44166
refinement:
raw
alternateIdentifiers:
44166
keywords:
functional genomics
dateModified:
06-02-2014
availability:
available
types:
gene expression
name:
Mus musculus
ID:
A-AFFY-45
name:
Affymetrix GeneChip Mouse Genome 430 2.0 [Mouse430_2]
accessURL: https://www.ebi.ac.uk/arrayexpress/files/E-GEOD-44166/E-GEOD-44166.raw.1.zip
storedIn:
ArrayExpress
qualifier:
gzip compressed
format:
TXT
accessType:
download
authentication:
none
authorization:
none
accessURL: https://www.ebi.ac.uk/arrayexpress/files/E-GEOD-44166/E-GEOD-44166.processed.1.zip
storedIn:
ArrayExpress
qualifier:
gzip compressed
format:
TXT
accessType:
download
authentication:
none
authorization:
none
accessURL: https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE44166
storedIn:
Gene Expression Omnibus
qualifier:
not compressed
format:
HTML
accessType:
landing page
primary:
true
authentication:
none
authorization:
none
abbreviation:
EBI
homePage: http://www.ebi.ac.uk/
ID:
SCR:004727
name:
European Bioinformatics Institute
homePage: https://www.ebi.ac.uk/arrayexpress/
ID:
SCR:002964
name:
ArrayExpress